In a lockdown environment, When restricted user logs on the application, it tries to receive files from Server Connection established, the application fails to work. To fix this issue, in your package providing read/write permission to application folder c:\program files\iSeriesAccess to restricted users.
The problem with Tech Preview currently (Sep 07) is that chunks of the product which are installed with the official installer (e.g. Navigator!) are missing from the MSI.
IBM pulled the Windows Installer Technology Preview for iSeries Access V5R4 from download some time before 17 NOV 2008.
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